How to prevent mold in humid closet long-term?« Back to Previous Page

My bedroom closet on the outside wall of our villa in Jumeirah has started getting these black spots on the leather bags and shoes I stored there. It’s been getting worse since the humidity spiked a couple of weeks ago, and I’m worried it’s going to ruin everything. Besides clearing it out, what’s the most effective long-term solution to prevent the mold from coming back in that specific spot?
Posted by Lina Al-Qasim
Asked on May 4, 2026 10:55 am
That black spotting is classic mold growth, and your situation is very common in Dubai villas, especially on exterior walls during high humidity periods. The wall itself is likely cooler than the room's air, causing condensation to form inside the wall cavity, which then provides the moisture mold needs to grow on your leather goods.

The most effective long-term solution requires addressing the hidden moisture source. Simply cleaning the visible mold won't stop it from returning. Start by moving all items out of the closet to dry completely. Wipe down affected leather with a dilute vinegar or specialized leather cleaner solution and allow everything to dry in a less humid area.

For prevention, you need to reduce humidity and eliminate the condensation point. First, improve air circulation. A small, battery-operated dehumidifier or moisture absorber like those from DampRid placed inside the closet can help, but it's a temporary measure. Leaving the closet door ajar and ensuring your room's AC is running consistently will keep air moving and reduce overall humidity levels.

The core issue is often the temperature differential in the wall. For a permanent fix, consider having a professional assess the wall's insulation. Adding a vapour barrier or improving insulation can warm the interior wall surface, preventing condensation from forming in the first place. This is a common remediation step for villas here.

If the problem persists or you see widespread growth, a professional inspection is recommended. They can use a borescope to check for moisture within the wall cavity and perform air quality testing to identify the mold species, which is crucial for determining the correct remediation method. In many cases, resolving this requires building modifications, not just cleaning.
Posted by Sani Admin
Answered on May 7, 2026 2:53 am